======================== unified (from filesystem) ========================
                                         'bitrate'  '238.995'
                                        'duration'  '115'
                                          'artist'  'Jethro Tull'
                                     'text_people'  ''
                                         'release'  'Aqualung (25th Anniversary Edition) [UK]'
                                           'title'  "Wond'ring Aloud"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'Q-PLAY-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-3', "
 "'Q-PIANO-2', 'q-chart-4', 'q-drums-1', 'q-other-3', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['folk rock', 'rock', 'progressive rock', 'progressive', 'classic rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '5'
                                      'tracktotal'  ''
                                            'date'  '1971'
                                        'comments'  ''
                                           'genre'  'rock-cppex-classic;rock-cppex-progressive'
                                             'bpm'  '94.108'
                                             'key'  '7B'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================

'TALB' (Album/Movie/Show title)                     'Aqualung (25th Anniversary Edition) [UK]'
'TBPM' (BPM (beats per minute))                     '94.108'
'TCON' (Content type, a.k.a. Genre)                 ['rock-cppex-classic', 'rock-cppex-progressive']
'TDRC' (Recording time)                             '1971'
'TIT2' (Title/songname/content description)         "Wond'ring Aloud"
'TKEY' (Initial key)                                '7B'
'TPE1' (Lead performer(s)/Soloist(s))               'Jethro Tull                    '
'TPE2' (Band/orchestra/accompaniment)               'Jethro Tull'
'TRCK' (Track number/Position in set)               '5'
'TSSE' (Software/Hardware and settings used for encoding)  'Lavf56.40.101'
'TXXX:DeviceConformanceTemplate'                    'L1'
'TXXX:IsVBR'                                        '0'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:WM/EncodingTime'                              '18446744073652991664'
'TXXX:WM/MediaPrimaryClassID'                       '{D1607DBC-E323-4BE2-86A1-48A42A28441E}'
'TXXX:WM/WMADRCAverageReference'                    '2152'
'TXXX:WM/WMADRCPeakReference'                       '25356'
'TXXX:WM/Year'                                      '1998'
'TXXX:WMFSDKNeeded'                                 '0.0.0.0000'
'TXXX:WMFSDKVersion'                                '9.00.00.3250'
'TXXX:lastfmtags'                                   ['folk rock', 'rock', 'progressive rock', 'progressive', 'classic rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+3.70 dB'
'TXXX:replaygain_track_peak'                        '0.907959'

========================== row from database ==========================
                                              'id'  1508202
                                            'path'  /data/Music/Bulk/00poprockelectronic/Jethro Tull/Jethro Tull - 1971 - Aqualung/05 Wond_ring Aloud.wma.mp3
                                         'working'  None
                                         'bitrate'  239
                                    'duration_sec'  115
                                           'genre'  rock-cppex-classic;rock-cppex-progressive
                                        'filesize'  3462884
                                           'mtime'  1636039248
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 1971 05 Wond_ring Aloud.wma rock cppex classic;rock cppex progressive
                                      'tag_artist'  Jethro Tull
                                     'tag_release'  Aqualung (25th Anniversary Edition) [UK]
                                       'tag_title'  Wond'ring Aloud
                                             'bpm'  94.108
                                    'search_title'  'aloud':4 'ring':2 'wond':1 'wondring':3
                                   'search_artist'  'jethro':1 'tull':2
                                  'search_release'  '25th':2,3 'anniversary':4 'aqualung':1 'edition':5,6 'uk':7,8
                                     'search_rest'  '00poprockelectronic':1 '1971':2 'aloud':5 'aloudwma':7 'classic':10,12 'cppex':9 'progressive':14 'ring':4 'rock':8,11,13 'wma':6 'wond':3
                                    'search_combo'  '00poprockelectronic':15 '1971':16 '25th':8C,9C 'aloud':4A,19 'aloudwma':21 'anniversary':10C 'aqualung':7C 'classic':24,26 'cppex':23 'edition':11C,12C 'jethro':5B 'progressive':28 'ring':2A,18 'rock':22,25,27 'tull':6B 'uk':13C,14C 'wma':20 'wond':1A,17 'wondring':3A
                                    'tag_tracknum'  5
                                      'num_images'  0
                                             'key'  7B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'Q-PIANO-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-4', 'q-other-3', 'Q-HAP-3', 'Q-PLAY-3', 'q-bass-3', 'q-grit-3']
                                      'lastfmtags'  ['folk rock', 'rock', 'progressive rock', 'progressive', 'classic rock']
                                        'tag_date'  1971
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636039247.878691  (2021-11-04 16:20:47)
                             'size'  3462884